Charleston, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Charleston, IL in one place.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and noon, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Charleston, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 9, 2026 8:58 PM CDT.
The active forecast window currently covers Jul 10 to Jul 16, 2026 for Charleston, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 16, 2026
- Latest sync
- Jul 9, 2026 8:58 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Charleston
Wednesday looks like the warmest upcoming period in Charleston at 88 degrees F.
Sunday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Sunday at about 8 mph NE.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 9, 2026 8:58 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely between 1am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. North wind around 3 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. East northeast wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 66. Northeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 84. Northeast wind around 8 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 65. Northeast wind 3 to 7 mph.
Sunny, with a high near 86.
Mostly clear, with a low around 67.
Sunny, with a high near 87.
Mostly clear, with a low around 69.
Sunny, with a high near 88.
Mostly clear, with a low around 70.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 88.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Chance Showers And Thunderstorms
|
85°F |
5 mph
SW
|
|
Friday Night
Jul 10
|
Chance Showers And Thunderstorms
|
67°F |
3 mph
N
|
|
Saturday
Jul 11
|
Chance Showers And Thunderstorms
|
83°F |
6 mph
ENE
|
|
Saturday Night
Jul 11
|
Chance Showers And Thunderstorms
|
66°F |
5 mph
NE
|
|
Sunday
Jul 12
|
Mostly Sunny
|
84°F |
8 mph
NE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
65°F |
3 to 7 mph
NE
|
|
Monday
Jul 13
|
Sunny
|
86°F |
5 to 8 mph
NE
|
|
Monday Night
Jul 13
|
Mostly Clear
|
67°F |
2 to 7 mph
ENE
|
|
Tuesday
Jul 14
|
Sunny
|
87°F |
6 mph
ENE
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
69°F |
0 to 3 mph
SSW
|
|
Wednesday
Jul 15
|
Sunny
|
88°F |
5 mph
W
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
70°F |
3 mph
WSW
|
|
Thursday
Jul 16
|
Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
3 to 7 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Charleston.
